[Event "46th Mid-South Open"] [Site "Memphis, TN"] [Date "2006.11.25"] [Round "2"] [White "Cohen, Lawrence"] [Black "O'Bar, Sam"] [Result "1-0"] [ECO "A29"] [WhiteElo "2000"] [BlackElo "1782"] [Annotator "Fritz 9 (30s)"] [PlyCount "95"] [EventDate "2006.??.??"] {A29: English Opening: Four Knights Variation with 4 g3} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. d3 Be7 7. Nf3 Nc6 8. O-O O-O 9. a3 Be6 10. b4 a6 {last book move} 11. Bb2 f5 {White has a cramped position} 12. Na4 e4 { Black gets more space} (12... Nxa4 $5 {is an interesting idea} 13. Qxa4 Bf6 $15 ) 13. Ne5 $14 Nxe5 14. Nxb6 cxb6 15. Bxe5 exd3 (15... Qd5 16. Bf4 $14) 16. Qxd3 $16 Qxd3 17. exd3 {White has a new passed pawn: d3. Black has new doubled pawns: b6+b7.} Rfd8 18. d4 (18. Bxb7 Ra7 19. Bc6 Kf7 $16) 18... Bd5 $14 19. Rfc1 Bxg2 20. Kxg2 Rd7 21. Rc2 b5 22. Rac1 Kf7 23. Rc7 {White threatens to win material: Rc7xd7} Rad8 24. f4 g6 25. R1c3 (25. Kf3 Ke6 $14) 25... Ke6 $11 26. Rxd7 Rxd7 27. Kf3 h6 (27... Bd6 28. Rc8 $11) 28. g4 fxg4+ 29. Kxg4 Bf6 30. Rc5 h5+ 31. Kf3 Bxe5 32. Rxe5+ Kf6 33. Ke4 Rc7 34. Rc5 (34. f5 $142 gxf5+ 35. Rxf5+ Kg6 36. h3 $16) 34... Rxc5 $4 (34... Re7+ $142 {had to be tried to avoid defeat } 35. Kf3 Re1 $11) 35. dxc5 $18 (35. bxc5 $6 h4 $18) 35... Ke6 36. h4 Kf6 37. Kd5 Kf5 38. Kd6 Kxf4 39. Kc7 g5 40. hxg5 Kxg5 41. Kxb7 h4 42. c6 h3 43. c7 h2 44. c8=Q h1=Q+ 45. Qc6 (45. Kb6 {and White can already relax} Kf4 $18) 45... Qh3 (45... Qa1 46. Qf3 $18) 46. Qc1+ Kg6 47. Kxa6 Qc8+ (47... Qf3 $18 {no good, but what else?}) 48. Qxc8 1-0